…Keeling does daily demonstrations, rolling glass in metal oxides to provide color, such as cobalt or copper for different shades of blue. He shapes heated glass, rolling it on a metal table, using steel tools or applying pressure with a scorched plank of cherry wood. Cherry, Keeling explained, has a low amount of tar that could soil the glass compared with other woods. Once the finishing touches are made, pieces can take from 12 to 36 hours to fully cool, depending on the density of the object. Because each piece is handmade, Keeling said, “My work can be similar, but never identical” to another piece.